The Planted Tank Forum - View Single Post - I plan on making a mineralized substrate for my tank
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post #2 of (permalink) Old 01-29-2013, 09:35 PM
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You can bake natural soil in the oven to mineralize it. But, I haven't done that, and I don't know how long it takes or what temperature to use. There is no reason to bake the clay, since it doesn't contain any organic nitrogen, as far as I know.

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